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1979年8月,在泰国中部乌太他尼的稻田里,发现一些叶片和叶鞘上具有小瘤的暗绿矮缩稻株,病株叶端微扭曲。在目前已知的水稻病毒病稻株均不会产生这些症状。初步试验表明,大斑黑尾叶蝉(Nephotettix nigropictus)能传播这一病害的病原体;并发
In August 1979, some dark green dwarf rice plants with small nodules on leaves and sheaths were found in the paddy fields of Utatnami in central Thailand. The diseased leaves were slightly distorted. None of the presently known rice virus strains develop these symptoms. Preliminary tests show that Nephotettix nigropictus can transmit the pathogen of this disease;